/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package com.google.code.twiddling.core.command;

import com.google.code.twiddling.core.exception.TwiddlingException;

/**
 * @author <a href="mailto:jeff.yuchang@gmail.com">Jeff Yu</a>
 *
 */
public interface ICommand {
	
	enum Result{
		SUCCESS,
		FAILURE
	}
	
	Result SUCCESS = Result.SUCCESS;
	
	Result FAILURE = Result.FAILURE;
	
	void execute(CommandContext context) throws Exception;
	
	void displayHelp(CommandContext context) throws TwiddlingException;
}
